Half to aaron w



(No Model.)

7 J. H. 'PAR'MELEE.

HAME FASTENER.

No. 423,529. Patented Mar. 18, 1890.

' ATTY It PETERS Pnoka wlcgwhar. Whhinginm D C UNITED STATES PATENTOFFICE.

JOHN H. PARMELEE, OF BRIDGEPORT, CONNECTICUT, ASSIGNOR OF ONE- HALF TOAARON W. WALLACE, OF SAME PLACE.

HAM E-FASTEN'ER.

SPECIFICATION forming part of Letters Patent No. 423,529, dated March18, 1890.

Application filed December 17,1889. Serial No. 334,086- (No model-D ToaZZ whom, it may concern.-

Be it known that I, JOHN H. PARMELEE, a citizen of the United States,residing at Bridgeport, in the county of Fairfield and State ofConnecticut, have invented certain new and useful Improvements in Hame-Locks; and I do hereby declare the following to be a full, clear, andexact description of the invention, such as will enable others skilledin the art to which it appertains to.

make and use the same.

My invention has reference to hame-locks; and it consists in the detailsof construction and combination of elements, such as will be hereinafterfully set forth, and then specifically designated by the claims.

In the accompanying drawings, Figure 1 is a perspective of myimprovement in position on a pair of hames, the latter being brokenaway; Fig. 2, a detail sectional elevation of the locking member of myhame-lock; Fig. 3, a sectional elevation of my improvement as it appearswhen the hames are locked; Fig. 4., a sectional elevation similar toFig. 2, but

showing the locking member slightly modified in construction; and Fig,5, a bottom View of my improvement, showing the link of chain which isengaged by the dog drawn up within the channels in the cross-bar toperm'it the withdrawal of said dog. '1

Similar letters denote like parts in the several figures. v

A B represent a pair of hames provided at their lower ends with theusual rings OI).

E is an S-hook pivoted at one end around the ring 0, a chain F beingattached to the other end.

G is a box whose rear end is curled around tion is to-counterbalancesaid dog, so that the nose thereof is always normally against a point aon the bottom of the cross-bar. Of course a spring K, arranged betweenthe heel of the dog and the top wall of the box, as seen at Fig. 4, maybe used instead of the weight L; but I prefer the latter, since theaction and reaction of the spring are too quick.

The bottom of the cross-bar H on each side of the point a is cut away toform channels I), so that in unlocking the'hames itis merely necessaryto roll the link which the dog engages up into said channels, and thusleave the nose of the dog free to be thrown down and away from thecross-bar, as will be readily understood by reference to Fig. 5. Thispeculiar construction of the cross-bar is a very important feature of myinvention, since if said bar were perfectly plain on the bottom the dogand interlocked link could not possibly be disengaged unless the chainwerefirst pulled down by main strength, so as to permit said dog to beswung freely from within the link.

The operation of my improvement is as follows: The chain 'is passedthrough the box from above, the dog being forced away from thecross-bar, a small nub M on the bottom of the dog affording a holdwhereby said dog may be conveniently operated and simply pulled downuntil the hames are sufficiently tightened. The chain will readily passunderneath the dog, thenose of the latter automatically engaging thelinks of the chain, so as to secure the same as against any slippingupward.

I claim- 1. In .a hame-lock, the combination of a box pivotally swung onone of the hames,-

said box having at the front end a crossbar provided on its under sidewith an elevated point and channels on each side of said point, a dogpivoted within the sides of said box and having a weighted heel, and alink chain suspended from the other hame, substantially as set forth.

2. In a hame-lock, the combination, with the box having a cross-bar atthe front end, In testimonywhereof I a'ffix my signature in of a dogpivoted within said box, the nose of presence of two witnesses.

said dog extending forward beneath the crossvbar, while the heel of thedog is weighted, JOHN H. PARMELEE. whereby said nose is normally held inelevai tion against the bottom of said crossbar, and Witnesses:

a link chain adapted to be engaged byrsaid F. W. SMITH, J r.,

nose, substantially as shown and described. J. P. HINOH.

